Combined governor and clutch



(Np Model.) J. L.-&s` J. S.HALL.

COMBINED GOVERNOR AND GLUTOH. NO. 505,827. .Pat-OntedOOt. l3, 1893'.

Elli-Ez.: I

l Unirse rares PATENT Oracion.

JAMES L. HALL AND JOHN S. HALL, OF EDEN, ILLINOIS.

COMBINED GOVERNOR AND CLUTCH.

SPECIFICATION forming part of Letters Patent No. 505,827, dated October3, 1893.

Application filed January 31, 1893. Serial No. 460,341. (No model.)

To all whom t may concern:

Be it known that we, JAMES L. HALL and JOHN S. HALL, citizens of theUnited States, residing at Eden, in the county of Peoria and State ofIllinois, have invented certain new and useful Improvements in AutomaticGovernors and Friction-Clutches; and we do hereby declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same.

This invention relates to improvements in automatic governors andfriction clutches.

This device is mainly for use on farm machinery, but may be used onother classes of machinery on which it is necessary to have such adevice.

It is our purpose in this invention to provide means by which farm orother machinery may be driven at a certain rate of speed and by theconstruction and operation shown and described, a gage is really set, bywhich the machinery may be governed as to speed-al1 of which will befully understood hereinafter.

Figure l represents a side elevation of the invention. Fig. 2 is aperspective view of a governor arm carrier. Fig. 3 is a perspective viewof a section of the governor arm carrier, showing construction of one ofthe arm holders. Fig. 4 is a plan view of an auxiliary tension device.Fig. 5 is a front elevation of the figure last above described omittingcertain parts.

A represents a shaft mounted in boxings on the upright standard B. Theouter free end of said shaft is provided with a pulley I to which themotive power is applied, and the other extremity A2of said shaft is madesquare from its eXtreme end, back to a point behind the bearing B2. justmentioned is loosely secured a friction plate D and this plate isallowed to slip back and forth on the shaft for the purposes hereinafterdescribed. Secured to the squared portion A2 immediately back of thesaid friction plate D is a carrier block E of either round or` squarecross section having a series of ears F F made integral therewith andset at regular intervals around the outer surface of said carrier. Eachpair of these ears F pivotally supports between them by means of On theend A2' of the shaft the pivot G2 the end of an arm Gcarrying on itsouter free end a weightI'I. The said pivoted end of each of said arms Gis in the form of an eccentric G. full side of the eccentric is outwardand away `from its pivotal point, so that when the arms G are thrownoutward, the full portion of the eccentric bears against a shoulder D'made on the friction plate D. The opposite friction plate O is mountedsecurely on the end of a shaft A having bearings in the standard B. Asbefore stated the poweris applied at the pulley I, and the pulley J onthe shaft A drives the machinery.

' It is sometimes of advantage to start machinery at a certain rate ofspeed and keep it steady at that rate. In this device, when the shaft Awith the governor is started to revolve, the speed must reach a certainpoint before the arms G will be thrown outward sufficiently to bring theplate D against the It will be seen that the plate O and with enoughpressure to carry the machinery to be driven. It may be clearly seenthat the faster the governor revolves, the more will be the pressure ofthe eccentrics G against the said shoulder D and therefore the morefriction is created between the friction plates.

Fig. 3 shows a portion of the carrier E and also shows a portion of apair of ears F, having a filling F between them upon which the arms Grest when idle. A spring K is secured at one end to the arm G (Fig. l)and the other end to an eye L on the carrier E.

As the friction plates are each mounted on a separate shaft, it will beseen that the machinery to be driven will not be aected un til thegovernor has attained sufficient speed to throw plate D outward to bearfirmly against plate O. Y

When the governor revolves fast enough, so that the friction plates takea good grip, the speed is kept as near as possible at that speed. Thedevice is especially good where immediate stoppage of the drivenmachinery is required, because almost as soon as the engine is deprived`of its supply of steam the speed of the governor will fall enough torelease the friction plates and consequently the driven machinery comesat once to a stand.

Figs. 4 and 5 show an auxiliary attachment IOO passing through the saidboxing R, and hav' ing taps O and P run/on the bar one before and theother behind the said boxing as shown so that the taps may be loosenedor tightened as desired to press the collar against the shoulder Q ofthe plate C, thus giving any desired steady pressure upon the plate Cagainst the plate D. This construction allows theshaft A with its plateC `to be forced toward and against the plate D (Fig. 1) so that morefric` tion may behad in case the arms G do not revolve fast enough tothrow plate D close enough to plate C for the required friction. Inthiscase the shaft A has a slight end play tov allow yofthe use ofthetightener just described.

We claim- 1. ,In an automatic governor and friction clutch, thecombination of a driving shaft A mounted in suitable bearings, andhaving one end thereof made square, and a friction disk D placed on saidsquared portion of said shaft and having a limited longitudinalmovementV thereon, a carrier block rigidly mounted on the shaft behindsaid friction disk, a series of two or more arms G pivoted at one endbetween the earsF of said carrier E, the pivoted ends of each of saidarms being formed into an eccentric and adapted to impinge uponthe backof the friction disk D, andv springs K attached at one end to thecarrier E and at the other to the arms G substan` tially as and for thepurposes set forth and described.

2. In an automatic governor and friction clutch, the combination of ashaft A mounted in suitable bearings and a friction disk C rigidlymounted on one end thereof and provided With a shoulder Q, a take updevice comprising a collar L encircling the shaft A and adapted to bearagainst the shoulder Q, a link M encircling the said collar and having apivotal connection therewith, a rod N to which one end of said link ispivoted, a boxing R to which rod N is bolted, threaded bar N to whichthe opposite end of the link M is pivoted, the taps 0 and P to adjustsaid bar, one of said-taps being on each side of the said boxing R,a ndall arranged substantially in the manner and for the purposes setforthand described.

3. In an automaticvgovernor and friction clutch the combination of, a'shaftA yjournaled in suitable bearings havingthe friction plate() withthe shoulder Q secured to one end thereof, a collar L loosely mounted onsaid shaft and adapted to bear against the shoulder Qa link M inclosingsaid collar and pivotally secured theretoa -rod N to which oney end'ofsaid link M is pivoted, boxing R to which rod N is bolted, threadedbar'N to which the opposite end of the link M is pivoted, the taps OandP toadjust saidbar,.one of said taps being on each side of .the saidboxing R, in the manner and for the purposes .herein set forth anddescribed.

In testimony whereof We affix our signatures in presence yof twowitnesses.

JAMES L. HALL. `JOHN S. HALL. Witnesses:

ROBERT H. LovETT, C. J oHNsoN.

